Gentlemen, the inaccuracy of antigen tests is not something new, just because a high profile figure was subject to those inaccuracies. Their virtue is that they are fast: minutes, not days, unlike PCR tests, which look for genetic material. Here's an article from Science, arguably the most respected media source in the biomedical research field, from May 22nd:
https://www.sciencemag.org/news/2020/05/coronavirus-antigen-tests-quick-and-cheap-too-often-wrong
The governor did the right thing. He quarantined until a PCR test could be run. Of course, he had the virtue of obtaining an answer in hours, unlike the rest of us chumps, but still...it was the right thing to do. So - SOP. Nothing strange. Nothing new. Once again, news agencies blowing stuff up to sell papers (or ads or clickbait or whatever).
With regards to the CDC guidance on error rates, again - details matter. The guidance was referring to serologic tests that look for the presence of anti-COVID antibody to report whether you have been exposed or not - IN THE PAST. It's not diagnostic and cannot be used to determine if you are currently infected. This was also early in the course of the disease; testing methods have been routinely improving as we generate new biologics to detect anti-COVID antibodies. However, the inaccuracy in the antigen test that was used on the governor, which is diagnostic, occurs mainly in terms of false negatives, and it's considered to be very accurate in terms of positives. Which makes what happened with the governor less likely, but still not too surprising. All of the data is publicly available if anyone wants to dig deeper. No hidden story there.
As for a guy beating the "Rona" in 12 hours. Lol. Maybe polishing of a big bowl of the maca"rona" and cheese. I don't even know how to begin debunking that sort of claim. Please, apply all that skepticism that I read on here even to stories that validate your world-view.